GMAT考試CR中的評價題應該怎么解

雅思托?？荚囀且粋€非常有難度的考試，相信很多在備考階段的小伙伴們，每天都在關注一些雅思相關的消息。有同學問：GMAT考試，CR中的評價題應該怎么解？？今天，一起來看看吧。

我們來看一下評價題的問法：

In evaluating the argument, it would be most useful to determine which of the following?Investigating which of the following would be most useful in choosing between the competing explanations described above?Which of the following would it be most useful to determine in evaluating the argument?

看一下這幾種問法的相似之處，無一例外都是讓我們通過選項給出的信息去幫原文做決定，也就是說，讓我們評價原文的結(jié)論是不是對的，或者推理是否合理。這就是評價題最重要的特點了：把選項納入條件范疇，去評價原文的推理過程或結(jié)果。

怎樣才能有效的評價？

既然讓我們?nèi)ピu價原文，那么一定是選項會對原文是否成立產(chǎn)生影響，也就是說，選項取不同的答案，會影響到原文邏輯鏈的達成情況；因此解題思路也就顯而易見了：對選項去不同的答案，看它會不會對原文邏輯鏈產(chǎn)生不同的影響。

舉個例子：

In many scientific disciplines, scientists generally do not do highly creative work beyond the age of forty, a tendency that has normally been taken to show thataging carries with it a loss of creative capacity. However, by the age of forty most scientists have been working in their chosen field for at least fifteen years, so an alternative explanation is that spending too long in a single field reduces the opportunity for creative thought.Investigating which of the following would be most useful in choosing between the competing explanations described above?

A. Whether among those scientists who do highly creative work beyond age forty a large proportion entered their field at a considerably later age than is commonB. Whether scientists choice of research projects tends to be influenced by their own belief that their most creative work will be done relatively early in their careerC. Whether scientists who are older than forty tend to find more satisfaction in other activities, such as teaching and mentoring, than they do in pursuing their own researchD. Whether funding agencies are more inclined to award research grants to scientists who are veterans in their field than to scientists who are relative newcomersE. Whether there is significant variation among scientific fields in the average age at which scientists working in those fields are at their most productive

這道題是一道評價題里面相對簡單的題目，主要探討的是科學家很少在40歲之后做出creative work的原因，給出了兩種可能，一種是因為aging，一種是因為在一個領域呆太久所以失去創(chuàng)造力，簡化一下邏輯鏈：

40之后很少creative---aging---spending too long

讓我們評價的就是上面的論述，也就是說看哪個選項能夠幫我們知道究竟是因為哪個原因。

這個題目通過選項相關性就可以直接排除掉BCDE四個選項了：

B.研究項目的選擇，無關

C.其他活動，無關

D.Funding愿意給誰錢，無關

E.不同領域是否年齡不同，無關

那么A為什么能夠評價呢？應用一下我們的方法，對A取不同的答案：

A說的是High Creative的里面是不是一大部分很晚才進入這個領域，如果答案取是，就說明沒有spend too long的就能有creative，即選擇了第二個解釋；如果打啊取否，不是，就說明不是第二個原因，即選擇了第一個解釋。因此A確實是可以幫我們做出判斷的。

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